A line with slope $- \frac { 2 } { 3 }$ passes through the point $(−12,16)$.

1. What is an equation of the line?

   Hint (a):

   Remember that the formula for the equation of a line is
   $y=mx+b$

   Step 1(a):

   Substitute the slope for $m$. Then, substitute the given point for $x$ and $y$, respectively.

   Step 2(a):

   Solve for $b$.

2. What is the $x$-intercept of the line?

   Step 1(b):

   Substitute for $y$ in the equation from part (a).